Author: Uri Blass
Date: 15:48:07 07/06/02
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On July 06, 2002 at 17:19:21, Robert Hyatt wrote: <snipped> > >OK... first, me, in Cray Blitz. 1994. GCP modified Crafty and used the >Hsu-definition of SE in doing so. And what was the result? Is the new crafty with singular extensions better? I guess it is worse because you do not use it in games. <snipped> >>There are programmers who use singular extensions but I know about no programmer >>of one of the top programs of today that use it in the way that they use it. > > >So? They choose to implement a less-than-optimal version to control the >computational cost. Deep thought already used singular extensions in the past and the top programs of today that search similiar number of nodes do not use them in the same way because they prefer to play better and not to use "optimal" extensions. I thought that optimal search rules mean search rules that help the program to play better but I guess that I am wrong and optimal rules mean "deep blue" search rules. Uri
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